Glow plugs are an essential part of a diesel engine, and the 7.3L Ford Powerstroke is no exception. These heating elements are responsible for warming up the engine's cylinders, which helps to ensure that the fuel is able to ignite properly. This is particularly important in colder weather, when the engine is more likely to struggle to start. Our glow plugs and controller are designed to work together seamlessly, providing reliable performance and helping to ensure that your 7.3L Ford Powerstroke starts up quickly and easily, even in the coldest weather. With a one year unlimited mileage warranty, you can trust that it's built to last.